Guided Bone Regeneration Using a Mixture of Autogenous and Xenograft Particulate Versus Patient-Specific Sticky Bone for Horizontal Anterior Maxillary Defect

This group will receive guided bone regeneration using a 1:1 mixture of autogenous bone harvested from the mandibular ramus and xenograft bone substitute (e.g., Bio-Oss). The graft material will be covered with a titanium meshes. Standard flap design, fixation, and suturing techniques will be used

This group will receive guided bone regeneration using patient-specific sticky bone, created by mixing autogenous bone and xenograft with autologous fibrin glue (PRF). The sticky bone graft will be molded and applied directly to the defect site, covered with a titanium meshes, and stabilized using standard surgical protocol.